Question: Since what time, Tenzin Gyatso has citizenship at People's Republic of China?
Paraphrase: How long has Tenzin Gyatso been a citizen at People's Republic of China?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q17293 p:P27 ?s . ?s ps:P27 wd:Q148 . ?s pq:P580 ?value}